No. Antibiotics usually do not cause a missed period but the underlying cause for which you are taking the antibiotics can affect the period. Any physical stress such as illness or psychological stress can affect ovulation and cause an irregular period. It is always important to take a pregnancy test when the period is late.

Maybe. A stressful situation can cause a missed period, wether it be emotional, physical or medical. It is of course very important to rule out the obvious, and be sure your not pregnant. That is the most common cause of a missed period.
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Yes. If you are asking if changing status of breastfeeding can cause you to miss a period, then the answer is yes. It's also possible, that if you are exclusively breastfeeding, and you're past the 6 month mark, without birth control, that you're pregnant. If you've supplemented at all since birth, then also possible pregnant. Consider a pregnancy test if you're at all worried. Best of luck.
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Anovulatory cycles. during which an egg is not released, and there is no menstrualbleeding (period) are common in very young women and in women who are approaching the age of menopause, and in PCOS. Smoking does decrease fertility and increases the risk of anovulatory cycles; however, many women who smoke cigarettes continue to have regular periods. Smoking causes many other health problems.
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Unknown . The reason is unknown, but the hormone cycle that happens is sensitive, and can easily be thrown off. Stress hormones influence the release of the hormones from the brain that control the cycle, but why and how it happens is not known.
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Maybe. A stressful situation can cause a missed period, wether it be emotional, physical or medical. It is of course very important to rule out the obvious, and be sure your not pregnant. That is the most common cause of a missed period.
Read more...

Yes. If you are asking if changing status of breastfeeding can cause you to miss a period, then the answer is yes. It's also possible, that if you are exclusively breastfeeding, and you're past the 6 month mark, without birth control, that you're pregnant. If you've supplemented at all since birth, then also possible pregnant. Consider a pregnancy test if you're at all worried. Best of luck.
Read more...

Anovulatory cycles. during which an egg is not released, and there is no menstrualbleeding (period) are common in very young women and in women who are approaching the age of menopause, and in PCOS. Smoking does decrease fertility and increases the risk of anovulatory cycles; however, many women who smoke cigarettes continue to have regular periods. Smoking causes many other health problems.
Read more...

Unknown . The reason is unknown, but the hormone cycle that happens is sensitive, and can easily be thrown off. Stress hormones influence the release of the hormones from the brain that control the cycle, but why and how it happens is not known.
Read more...